Special Tools Required

WARNING: This page is about a different car, the 2013 Honda Fit, 2012 Honda Fit, 2011 Honda Fit, 2010 Honda Fit, and 2009 Honda Fit. However, it is still accessible from the selected car via links, so may be relevant.

SRS inflator simulator 07SAZ-TB4011A
SRS simulator lead L 070AZ-SNAA300
SRS short canceller 070AZ-SAA0100

NOTE:

Before doing this troubleshooting procedure, find out if the vehicle was in a collision. If so, verify that all the required components were replaced with new components, of the correct part number, and that they were properly installed. (See COMPONENT REPLACEMENT/INSPECTION AFTER DEPLOYMENT ).
Before doing this troubleshooting procedure, review SRS PRECAUTIONS AND PROCEDURES , General Troubleshooting Information (see DTC (DIAGNOSTIC TROUBLE CODES) ) and BATTERY TERMINAL DISCONNECTION AND RECONNECTION .
Before replacing the SRS unit, check the SRS unit software version with the HDS. If the software version is not the latest, update the SRS unit software (see SRS UNIT UPDATE ) and retest.

Clear the DTC memory (see READING THE DTC ).
Turn the ignition switch to ON (II), then wait for 10 seconds.
Check for DTCs with the HDS (see READING THE DTC ).
Is DTC 31-3x indicated?

YES - Go to step 4.

NO - Intermittent failure, the system is OK at this time. Go to TROUBLESHOOTING INTERMITTENT FAILURES . If another DTC is indicated, troubleshoot the DTC.
Turn the ignition switch to LOCK (0).
Disconnect the negative cable from the battery, then wait at least 3 minutes.
Disconnect the driver's side airbag inflator 2P connector (A) on the floor wire harness.

Fig 1: Identifying Driver's Side Airbag Inflator 2P Connector (A) On The Floor Wire Harness
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Connect the terminals of SRS simulator lead L to the SRS inflator simulator (2 Ω connectors), and then connect SRS simulator lead L to the driver's side airbag inflator 2P connector on the floor wire harness.
Reconnect the negative cable to the battery.
Clear the DTCs with the HDS (see CLEAR THE DTC MEMORY ).
Turn the ignition switch to ON (II), then wait for 10 seconds.
Check for the DTCs with the HDS (see READING THE DTC ).
Is DTC 31-3x indicated?

YES - Go to step 12.

NO - Short to another wire in the driver's side airbag inflator; replace the driver's side airbag (see SIDE AIRBAG REPLACEMENT ), then clear the DTC.
Turn the ignition switch to LOCK (0).
Disconnect the negative cable from the battery, then wait at least 3 minutes.
Disconnect SRS unit connector B (39P) from the SRS unit (see step 10 under Disconnecting System Connectors ).
Disconnect the SRS inflator simulator from SRS simulator lead L. Do not disconnect SRS simulator lead L from the driver's side airbag inflator 2P connector on the floor wire harness.
Connect an SRS short canceller (070AZ-SAA0100) to SRS unit connector B (39P) terminals No. 6 and No. 7 (see OPENING THE SRS UNIT SHORTING CONNECTORS FOR DIAGNOSIS ).
Measure the resistance between the SRS simulator lead L (A) black terminals.

Fig 2: Measuring Resistance Between Terminals Of Black SRS Simulator Lead (A)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there an open circuit, or at least 1 MΩ ?

YES - Faulty SRS unit or poor connection at SRS unit connector B (39P) and the SRS unit. Check the connection; if the connection is OK, replace the SRS unit (see SRS UNIT REPLACEMENT ). If the DTC does not clear, replace the floor wire harness.

NO - Short to another wire in the floor wire harness; replace the floor wire harness, then clear the DTC.